"Chuck keeps providing riddles for behavior that is a bit different than what I expected. The original K3 with the KIO3 board exhibits exactly the behavior I outlined previously. A K3S or K3 with the KIO3B interface behaves the way Chuck describes. A look at the KIO3B schematic reveals why - it has series connected diodes in the band pull-ups so that when the main Vcc drops at power-off, the band lines are disconnected from the power rail. Thus the pull-ups inside the KPA500 take over and it sees the magic 1111 pattern indicating that no band is connected."
Perhaps I'm a bit perverse but that provided some amusement. 73, Andy, k3wyc ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
